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Blast Pipe :: Blast pipe () The exhaust pipe of a steam engine, or any pipe delivering steam or air, when so constructed as to cause a blast..

Trunnioned :: Trunnioned (a.) Provided with trunnions; as, the trunnioned cylinder of an oscillating steam engine..

Vacuum :: Vacuum (n.) The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.; as, a vacuum of 26 inches of mercury, or 13 pounds per square inch..

Rock Shaft :: Rock shaft () A shaft that oscillates on its journals, instead of revolving, -- usually carrying levers by means of which it receives and communicates reciprocating motion, as in the valve gear of some steam engines; -- called also rocker, rocking shaft, and way shaft..

Indicate :: Indicate (v. t.) To investigate the condition or power of, as of steam engine, by means of an indicator..

Shaft :: Shaft (n.) A solid or hollow cylinder or bar, having one or more journals on which it rests and revolves, and intended to carry one or more wheels or other revolving parts and to transmit power or motion; as, the shaft of a steam engine..

Water Gauge :: Water gauge () An instrument for measuring or ascertaining the depth or quantity of water, or for indicating the height of its surface, as in the boiler of a steam engine. See Gauge..

Supervise :: Supervise (v. t.) To oversee for direction; to superintend; to inspect with authority; as, to supervise the construction of a steam engine, or the printing of a book..

Condenser :: Condenser (n.) An apparatus, separate from the cylinder, in which the exhaust steam is condensed by the action of cold water or air. See Illust. of Steam engine..

Link :: Link (n.) Any intermediate rod or piece for transmitting force or motion, especially a short connecting rod with a bearing at each end; specifically (Steam Engine), the slotted bar, or connecting piece, to the opposite ends of which the eccentric rods are jointed, and by means of which the movement of the valve is varied, in a link motion..

Movable :: Movable (a.) Capable of being moved, lifted, carried, drawn, turned, or conveyed, or in any way made to change place or posture; susceptible of motion; not fixed or stationary; as, a movable steam engine..

Lag :: Lag (n.) A stave of a cask, drum, etc.; especially (Mach.), one of the narrow boards or staves forming the covering of a cylindrical object, as a boiler, or the cylinder of a carding machine or a steam engine..

Soleplate :: Soleplate (n.) A bedplate; as, the soleplate of a steam engine..

Cushion :: Cushion (n.) a mass of steam in the end of the cylinder of a steam engine to receive the impact of the pisto.

Gasket :: Gasket (n.) The plaited hemp used for packing a piston, as of the steam engine and its pumps..

Stroke :: Stroke (v. t.) The movement, in either direction, of the piston plunger, piston rod, crosshead, etc., as of a steam engine or a pump, in which these parts have a reciprocating motion; as, the forward stroke of a piston; also, the entire distance passed through, as by a piston, in such a movement; as, the piston is at half stroke..

Spanner :: Spanner (n.) A contrivance in some of the ealier steam engines for moving the valves for the alternate admission and shutting off of the steam.

Crosshead :: Crosshead (n.) A beam or bar across the head or end of a rod, etc., or a block attached to it and carrying a knuckle pin; as the solid crosspiece running between parallel slides, which receives motion from the piston of a steam engine and imparts it to the connecting rod, which is hinged to the crosshead..

Eccentric :: Eccentric (n.) A disk or wheel so arranged upon a shaft that the center of the wheel and that of the shaft do not coincide. It is used for operating valves in steam engines, and for other purposes. The motion derived is precisely that of a crank having the same throw..

Organ :: Organ (n.) A component part performing an essential office in the working of any complex machine; as, the cylinder, valves, crank, etc., are organs of the steam engine..

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